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Yuanguo He, Upper Hill GIS sub-station

Yuanguo He, Upper Hill GIS sub-station

Friday, 05 December 2014 08:41 Written by 
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Mr. He has been engineer in-charge for power sub-station that Danaff Company has been awarded by Kenya Power and Lighting Company. Mr. Ho has experience in electrical engineering services where he has worked with Hudro-China one of the largest electric company in China. He joined Danaff Company since 2011 due to increase power project in Kenya. Through his skills the power installation department has grown from ordinary sub-station to installation of GIS (Gas Insulated Switchgear) advanced technology of generating power using gas instead of water.

A gas insulated switchgear substation (GIS) is a high voltage substation in which the major structures are contained in a sealed environment with sulfur hexafluoride gas as the insulating medium. GIS technology originated in Japan and China, where there was a substantial need to develop technology to make substations as compact as possible. The clearance required

for phase to phase and phase to ground for all equipment is much lower than that required in an air insulated substation; the total space required for a GIS is 10% of that needed for a conventional substation.

Gas insulated substations offer other advantages in addition to the reduced space requirements. Because the substation is enclosed in a building, a GIS is less sensitive to pollution, as well as salt, sand or large amounts of snow. Although the initial cost of building a GIS is higher than building an air insulated substation, the operation and maintenance costs of a GIS are less. Danaff and Hydro-China are committed to continue providing technology to several cities in Kenya.

何元国先生是达纳福公司副总经理,总负责公司水电项目。他参与管理的项目包括 Awendo 水工程等公司水电项目。


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